Read the excel with add headers property checked and save to datatable dt

In Assign activity, save this query to a datatable variable(From row in dt.Select() Where row("ColumnB").ToString.Equals("20180101") and (row("ColumnC").ToString.Equals("3") or row("ColumnC").ToString.Equals("5")) Select row).CopyToDatatable

we have to filter the second column based on the first value , So I took the first element by taking the second column as a list. suppose in the first place instead of ‘20180101’ if some other value is there then we have to take that value.